Vigorous: It was first seen in Strange Tales from a Lonely Studio in the Qing Dynasty, describing the vigorous pace.

Qing Pu Songling's Strange Tales from a Lonely Studio: Green moths: "You will drag yourself to the corner of the road, knock on stones to make a fire, wrap paper in powder, and smoke your feet. Trying to do it is not only painful, but also healthy.

Lightness first came from Li Bai's Hui in the Tang Dynasty, which described the graceful posture and brisk pace of women.

Tang Li Bai's Meet: "How light it is to get off the bus, floating like a plum." Song Zhou Bangyan's poem "Willow Branches" says: "There is a man, with the rhyme of begonia, who flies lightly." Yuan Hu Tianyou's "Hua Yang Yin": "Crossing the water with the wind is too affectionate, and the flowers are swaying." Xu Chi's Peony IX: "She talks, sings and plays the piano, but she is still loud and vigorous, and her posture is light."